Company lists · Data refreshed October 2026

Top 25 Casualty reinsurance brokers worldwide

Name: Casualty reinsurance brokers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 6,926 companies tracked

RevenueBase identified 6,926 company matches for casualty reinsurance brokers worldwide as of October 2026 and tracks 400,933 professional contacts across them, including 179,469 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for casualty reinsurance brokers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026. Country and city lists for casualty reinsurance brokers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

6,926Companies

400,933Contacts tracked

179,469Verified emails

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The 25 largest casualty reinsurance brokers worldwide

Ranked by team size

Top 25 of 6,926 company matches for casualty reinsurance brokers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	CHUBB	Exact match	Zurich, SwitzerlandHQ recorded Oct 9, 2026	10001+	37,050 contacts →
	Exact match “Chubb is a world leader in insurance.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	HUB International	Exact match	Chicago, IL, United StatesHQ recorded Oct 9, 2026	10001+	14,807 contacts →
	Exact match “Hi, we’re HUB.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Swiss RE	Exact match	Zurich, SwitzerlandHQ recorded Oct 9, 2026	10001+	14,339 contacts →
	Exact match “The Swiss Re Group is a leading wholesale provider of reinsurance, insurance and other insurance-based forms of risk transfer.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Lockton	Exact match	Dallas, TX, United StatesHQ recorded Oct 9, 2026	10001+	14,330 contacts →
	Exact match “What makes Lockton stand apart is also what makes us better: independence.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	USI Insurance Services	Exact match	Valhalla, NY, United StatesHQ recorded Oct 9, 2026	10001+	10,601 contacts →
	Exact match “USI is one of the largest insurance brokerage and consulting firms in the world, delivering property and casualty, employee benefits, personal risk, program and retirement…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	QBE Insurance	Exact match	Sydney, United StatesHQ recorded Oct 9, 2026	10001+	10,256 contacts →
	Exact match “At QBE we’re driven by our purpose of enabling a more resilient future.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	AXA XL	Exact match	Hamilton, BermudaHQ recorded Oct 9, 2026	10001+	10,174 contacts →
	Exact match “We are a leading provider of insurance and reinsurance offering innovative risk management solutions for businesses worldwide.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Munich RE	Exact match	Munich, GermanyHQ recorded Oct 9, 2026	10001+	9,539 contacts →
	Exact match “Munich Re is one of the world’s leading providers of reinsurance, primary insurance and insurance-related risk solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Howden	Exact match	London, United KingdomHQ recorded Oct 9, 2026	10001+	9,413 contacts →
	Exact match “We’re Howden, the people first insurance group with employee ownership at its heart.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	MARSH	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	10001+	8,763 contacts →
	Exact match “We help our clients and colleagues grow, and our communities thrive, by protecting and promoting Possibility.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Alliant Insurance Services	Exact match	Irvine, CA, United StatesHQ recorded Oct 9, 2026	10001+	6,474 contacts →
	Exact match “Alliant Insurance Services is among the top 5 largest and fastest-growing insurance brokerage and consulting firms in the United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Amwins	Exact match	Charlotte, NC, United StatesHQ recorded Oct 9, 2026	5,001-10,000	5,053 contacts →
	Exact match “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	SOMPO	Exact match	Pembroke, BermudaHQ recorded Oct 9, 2026	5,001-10,000	3,722 contacts →
	Exact match “We are Sompo, a global provider of commercial and consumer property, casualty, and specialty insurance and reinsurance.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	GUY Carpenter	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	1,001-5,000	3,643 contacts →
	Exact match “At Guy Carpenter, a Marsh business, we deliver a powerful combination of (re)insurance broking expertise, capital solutions, global analytics, advisory, and client support…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	SCOR	Exact match	Paris, FranceHQ recorded Oct 9, 2026	1,001-5,000	3,603 contacts →
	Exact match “SCOR, one of the world’s largest reinsurers, serves more than clients worldwide, providing a diversified and innovative range of solutions to control and manage risk.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Everest	Exact match	Warren, NJ, United StatesHQ recorded Oct 9, 2026	1,001-5,000	3,122 contacts →
	Exact match “Everest Group, Ltd.(“Everest”) is a global underwriting leader providing best-in-class property, casualty, and specialty reinsurance and insurance solutions that address…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	RT Specialty	Exact match	Chicago, IL, United StatesHQ recorded Oct 9, 2026	1,001-5,000	3,006 contacts →
	Exact match “RT Specialty is a leading wholesale distributor of specialty insurance products and services and the wholesale broking specialty for Ryan Specialty.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Mcgriff	Exact match	Charlotte, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,827 contacts →
	Exact match “When it comes to protecting what matters most in business and everyday life, at McGriff we believe our clients should never settle for less than the best.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	IMA Financial Group, INC	Exact match	Denver, CO, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,610 contacts →
	Exact match “With over four decades of experience in the industry, IMA has become a trusted leader in commercial insurance, risk management, surety, and employee benefits brokerage and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Gallagher RE	Exact match	London, United KingdomHQ recorded Oct 9, 2026	1,001-5,000	2,558 contacts →
	Exact match “Gallagher Re is one of the largest global reinsurance brokers, helping clients access the capital they need with strategic solutions built for volatile markets.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Allianz Commercial	Exact match	United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,402 contacts →
	Exact match “Allianz Commercial is the center of expertise and global line of Allianz Group for insuring mid-sized businesses, large enterprises and specialist risks.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Axis Axis Capital	Exact match	Pembroke, BermudaHQ recorded Oct 9, 2026	1,001-5,000	2,396 contacts →
	Exact match “In a world that never stands still – where the nature of risk is constantly evolving and the needs of your customers are continually changing – you need a partner that turns…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Howden Insurance Brokers Limited	Exact match	London, United KingdomHQ recorded Oct 9, 2026	1,001-5,000	2,331 contacts →
	Exact match “Howden Insurance Brokers Ltd is a leading provider of insurance broking, risk consulting, and employee benefits advice.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	MDS Group	Exact match	Porto, PortugalHQ recorded Oct 9, 2026	1,001-5,000	2,315 contacts →
	Exact match “A MDS é um grupo multinacional com mais de 40 anos de experiência em corretagem de seguros, resseguros, consultoria de riscos e gestão de benefícios.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Lloyd's	Exact match	London, United KingdomHQ recorded Oct 9, 2026	1,001-5,000	1,887 contacts →
	Exact match “Lloyd’s is the only insurance marketplace of its kind in the world.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “casualty reinsurance brokers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,926 casualty reinsurance brokers worldwide

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Casualty reinsurance brokers worldwide at a glance

As of Oct 9, 2026

44.8%Verified-email coverage

57.9Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Sao Paulo

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

3,256

11-50

2,356

51-200

680

201-500

207

501-1,000

1,001-5,000

106

5,001-10,000

10001+

190

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for casualty reinsurance brokers are linked below.
What qualifies: Company records worldwide whose business descriptions match “casualty reinsurance brokers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 179,469 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Casualty reinsurance brokers by location

49 lists · largest first

Every Casualty reinsurance brokers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “casualty reinsurance brokers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many casualty reinsurance brokers are there worldwide?

RevenueBase identified 6,926 company matches for casualty reinsurance brokers worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

CHUBB tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most casualty reinsurance brokers?

The United States leads with 1,513 companies, followed by Brazil (586) and the United Kingdom (462). Every casualty reinsurance brokers list by country and city is linked on this page.

Which city has the most casualty reinsurance brokers?

Sao Paulo leads with 186 company records, followed by London (180) and Rolling Meadows (131).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 179,469 professional contacts with verified work emails tracked across these 6,926 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.